Cross Sections of 3-Dimensional Solids Watch video to gain an insight into cross sections. Predict the the 2-d shape created if the 3-d shape were sliced as shown. Click on each image to reveal the answer hidden behind. ()If viewing as PDF, answers on the next slide. The 2-d shape created if the 3-d shape were sliced as shown on the previous slide. How accurate were your predictions?
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7. 8. 9. Click on the hyperlink below to play around with cross sections using the GEOGEBRA Applet.
Cross Sections of Solids GEOGEBRA Play this Kahoot! to test your understanding!
KAHOOT! Shown below is a sketch of 5 evenly spaced, horizontal cross-sections of the following figure.
This work is derived from Eureka Math ™ and licensed by Great Minds. ©2015 Great Minds. eureka-math.org This file derived from GEO-M3-TE-1.3.0-08.2015 Shown below is a sketch of 5 horizontal cross-sections of a cup.
This work is derived from Eureka Math ™ and licensed by Great Minds. ©2015 Great Minds. eureka-math.org This file derived from GEO-M3-TE-1.3.0-08.2015 Can you get different cross-sections for the same shape? Sure! How many different cross-sections can you get from a cone?
● Can you get different cross-sections from a cylinder? Your Challenge!
Find cross sections for different 3d objects around your house and share!
1) Make a copy of the Google Slide titled “Cross-Section BINGO” 2) Title it with your name 3) Find objects in your home with cross-sections to match those on the BINGO card. 4) Copy and paste the image onto the appropriate spot on the BINGO card 5) You may use an object more than once to represent different 2-d cross-section shapes. 6) Once you’ve completed a BINGO (or Blackout) share with Mrs. Mahoney at [email protected] Cross-Section BINGO
Right Equilateral Circle Rectangle Oval Triangle Triangle
Isosceles Half-Circle Trapezoid Octagon Hexagon Triangle
FREE Right Rectangle Half-Circle Circle SPACE Triangle
Hexagon Square Oval Square Octagon
Isosceles Trapezoid Pentagon Triangle Rectangle Triangle